05.26.11
More Info On The Outbreak
The Norman National Weather Service has put out more information on their page for the 24 May 2011 Oklahoma tornado outbreak.
So far they have rated 4 of the 7 confirmed tornadoes as EF3s, though these ratings could be raised (and probably will be) pending further damage analysis.
The following map shows an updated map of the preliminary tornado tracks, with times the tornadoes were on the ground.
The following images show the storm-relative velocity and radar reflectivity for the tornadic supercells approaching the Oklahoma City metro area. Click to enlarge.